Bug #77425 [NEW]: Operator error

From: karolyizoltan dot 1 at gmail dot com Operating system: Windows 8.1 PHP version: 7.1.25 Package: Math related Bug Type: Bug Bug description:Operator error Description: ------------ SYSTEM I test here by PHP 7.2.4 as well: http://sandbox.onlinephpfunctions.com/ and on my desktop 7.1.25 (this come from the php is downloaded and installed from here: https://www.apachefriends.org/download.html) PROBLEM The same values in case of some operators do not result the right outcomes. All of the six cases need to be true but first four return false values. Test script: --------------- $a = '0.9'; $b = '7.34'; $c = '100'; $d = floor(($a * $b)*100)/100; $e = $c + $b - $d;//this return 100.74 too $f = 100.74; // values of variables var_dump($e); var_dump($f); //first four return false values but all of them need to be true var_dump($e == $f);//false var_dump($e <= $f);//false var_dump($f >= $e);//false var_dump($e == $f);//false var_dump($e >= $f);//true var_dump($f <= $e);//true Expected result: ---------------- All the equations need to return true value for the same numbers. -- Edit bug report at https://bugs.php.net/bug.php?id=77425&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=77425&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=77425&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=77425&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=77425&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=77425&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=77425&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=77425&r=needscript Try newer version: https://bugs.php.net/fix.php?id=77425&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=77425&r=support Expected behavior: https://bugs.php.net/fix.php?id=77425&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=77425&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=77425&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=77425&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=77425&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=77425&r=dst IIS Stability: https://bugs.php.net/fix.php?id=77425&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=77425&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=77425&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=77425&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=77425&r=mysqlcfg